Improvement in wash-boilers



y dicate like parts.

PATENT OEEIcE.i

y JOSEPH C. TILTON, OF PITTSBURG, PENNSYLVANIA.

i IMPROVEMENT IN WASHBOILERS.

Specification forming part of Letters Patent No. 119,063, datedSeptember 19, 1871.

To all whom it may concern:

Be it known that I, JOSEPH C. TILToN, of the city of Pittsburg, in thecounty of Allegheny and State of Pennsylvania, have made certainImprovements in Wash-Boilers; and I do hereby declare that the followingis a full, clear, and eX- act description ofthe same.

The first part of my invention relates to the valve in the center of thefalse bottom placed in the boiler, and to the tubes on the outside,extending from below thefalse bottom to the top ofthe boiler. The objectof this part of my invention is to allow the cold water free ingressinto the lower division of the boiler through the hole in the falsebottom, and by closing the said hole with a valve to force the water,when heated, up through the outside tubes into the upper part of theboiler and over the clothes. The second part of my 'invention relates tothe hook and spring for holding the false bottom in place. The objectaccomplished by this part of my invention is the securing of the falsebottom in its place in a very simple and convenient manner. The thirdpart of my invention relates to the sieve which rests on the falsebottom. The object of this part `of my invention is to keep the clothesfrom gathering over and around the valve and impeding its operation.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation, reference being hadto the accompanying drawing forming a part of this specification and tothe letters of reference marked thereon.

Figure l is a perspective view of my boiler; Fig. 2, a centralcross-section `through the scction-line AB of Fig. 4; Fig. 3, averticalcentral section through `the section-line C D of Fig. 4 5 Fig. 4, a top`view of the boiler; and Fig. 5, a perspective view of the sieve.

Similar letters of reference in the drawing in- A is a wash-boiler ofthe usual form, the lower part C being-made deep so as to set well intothe fire and expose a large area of heating-surface.

` D is the false bottom, which consists of a sheet of tin having the rimE E, which raises it above the bottom of the boiler,ou which the rim E Erests. 'IWo openings arecut through thissupporting-rim, communicatingwith the external tubes F F, which open into the upper part of theboiler through the holes G G. The valve H is in the center ofthe falsebottom and opens downward, being held in place by the stem I, whichplays up and down in the supports K L. The valve is protected from thepressure of the clothes in the boiler by the guard M, which is a metaldisk supported on the columns N N. O is ametal loop or hook, soldered orriveted onto the side of the boiler. P is a spring, also secured to theside of the boiler. One end of the false bottom is slipped under thehook O; the other i end is then pressed down, forcing back the springimtil the top of the false bottom drops below the end of the spring,which iiies out over the false bottom, holding it down, as shown in Fig.3. The sieve R is provided with feet S S S S, and rests on the falsebottom D, and on this sieve the soiled clothes are laid. This sievekeeps the clothes up from the false bottom and away from around thevalve, forming a chamber for the water which percolates through theclothes to collect in while the valve H is closed.

When the boiler is to be used the lower part is lled with Water, inwhich some soap is dissolved. The false bottom is then placed inposition, as shown in Fig. 3, where it is held by the spring P. Thesieve R is next placed in the it the soiled clothes are placed inlayers. When the Water below the false bottom becomes heated it expands,forcing up the valve H and closing the opening which the valvecovers.The water is, therefore, forced to find its escape through the tubes FF, in the direction indicated by the arrows in the drawing', Fig. 3, andis poured from them through the holes G G with considerable "force, inthe condition of mixed steam and water, andfalls on the clothes, throughwhich it is drawn and filtered back into the chamber under the sieve.When a portion of the water is forced out from the lower chamber apartial vacuum is formed; the valve H then drops and the cooler Waterunder the sieve runs in, and is, in its turn, heated and forced outthrough the tubes F F. When the water becomes thoroughly heated acontinuous circulation, as above described, is kept up,

false bottom, as shown in the drawing, and on` which, by reason of thegreat solvent powers of the combined boiling-Witter, soa-p, and steam,soon frees the clothes from all dirt.

I do not claim as new the use of a false bottom, forming a Water-spacebelow the clothes; nor the use of tubes for carrying the hot Water fromthe bottom to the top of the boiler.

What I do claim as my invention, and desire to secure by Letters Patentof the United States, 1s

l. The false bottom D, having the valve H, in

combination with the external tubes F F, when arranged as shown, for thepurpose described.

2. The combination of the sieve R, false bottom D, Valve H, hook D,spring P, and external tubes F F with the boiler A, Whenarranged asshown and described.

JOSEPH C. TILTON.

Witnesses A. B. HAY,

FRANCIS S. CLARK. (117.)

